We've designed a product that uses the SPWF01SC + Sagrad antenna (as specified in the datasheet) and would like to consider migrating to the SPWF04SC + Sagrad antenna. Looking at the datasheets however, both modules have only been tested to EN 300 328 v1.9.1 whereas the new Radio Equipment Directive (2014/53/EU) appears to require testing to the EN 300 328 v2.1.1 standards which include a new receiver blocking test.
We wish to use the Sagrad antenna with the SPWF04SC and so would need to repeat the EN 300 328 tests to v2.1.1 with our board and the antenna. I noticed that there's an "etf_mode" configuration variable available but no documentation as to what the engineering test functions are for different values of etf_mode. I've therefore got a few questions about getting our product through the compliance testing:
1) Are the etf_modes documented anywhere or can you tell me what they should be set to in order to test the module under EN 300 328?
2) The new receiver blocking test in v2.1.1 requires that the module performs with less than a 10% packet error rate with a signal present on a frequency adjacent to the one under test; is it possible to stop the frequency hopping of the receiver for this test and also to configure another SPWF module to send data on a single RF channel to it? If so then what would be the best way to verify that we're meeting the <=10% PER, send lots of short UDP packets perhaps from one module to the other?